4, 6, 8 & 12 Holders Wrist Action Shaker / Wrist Action Flask Shaker / Lab Flask Shaker Rotator with PID Controller
Wrist Action shaker is shaking equipment manufactured for testing samples in 50 ml to 1000 ml conical flask & Small Size Round bottom flask. Yatherm Wrist action shaker has two wrists on each side of the shaker for accommodating 4 to 12 flasks. Wrist shakers are specially designed for slow variable oscillations ranges from 10 to 200 RPM which reflects in RPM display meter. This machine comes with a Speed regulator & flask holder clamp on each side of the wrist for an excellent shaking phenomenon.
Laboratory Wrist action shaker has exterior Mild steel construction with SS rod to hold the wrist of shakers. Clamps are made up of MS powder coated with rubber holders for the safety of glassware. Yatherm manufactures rugged and high-quality benchtop models of shakers which occupy very little space in your laboratory. We offer reliable laboratory wrist shakers at the best price to the world market with great after-sales support and spare parts availability. We are the one who supplies laboratory wrist shakers according to the client's technical specifications most importantly which match the International Products quality.
Why the Wrist Action Motion Matters
A wrist action shaker doesn't spin or rock samples — it moves each flask through a gentle, repeated wrist-like rotation, which keeps solid-liquid mixtures agitated without violent splashing or foaming. That matters most in extraction and leaching procedures, where the sample needs steady, consistent contact between solid and solvent over a long duration rather than a fast, aggressive mix. It's part of why this shaker type shows up so often in environmental testing, agricultural residue analysis, and standardized extraction protocols across food and pharma labs.
Built for Daily Bench Use, Not Just a Single Test
The PID controller keeps oscillation speed steady across a full run, so a two-hour extraction doesn't drift in RPM halfway through and skew your results. Because the unit ships in 4, 6, 8, and 12-holder configurations, a small QC lab and a higher-throughput testing facility can both use the same core machine — they just pick the holder count that matches their sample volume. The compact benchtop footprint means it doesn't need a dedicated shaker room; it sits alongside your other bench equipment and still holds up to continuous daily use thanks to the mild steel body and stainless steel wrist rods.
Where Yatherm's Wrist Action Shaker Is Used
This shaker is common in soil and water testing labs (for leaching and extraction procedures), agrochemical and pesticide residue labs, food safety testing, and pharmaceutical quality control, wherever a method calls for slow, repeated flask agitation over an extended period rather than fast orbital mixing. Rubber-lined clamps protect glassware from chipping during long runs, which matters when the same flasks are reused across dozens of test cycles a week.
Need a configuration for a specific flask size or holder count? Talk to our team here and we'll match the right model to your test method.
Frequently Asked Questions: Wrist Action Shakers
What is a wrist action shaker used for?
A wrist action shaker agitates flasks through a slow, repeated wrist-like rotation, suited to extraction and leaching procedures where solid and liquid need sustained, gentle contact rather than fast mixing. It's widely used in environmental, agricultural, food, and pharmaceutical testing labs for standardized shake-extraction methods.
How is a wrist action shaker different from an orbital or rotary shaker?
An orbital shaker moves flasks in a continuous circular path, which suits cell culture and general mixing. A rotary shaker rotates the whole platform. A wrist action flask shaker instead uses a reciprocating wrist motion on each holder arm, which gives gentler, more controlled agitation — better suited to extraction protocols that specify this exact shaking action rather than orbital or rotary motion.
What RPM range does this shaker support?
Oscillation speed runs from 10 to 200 RPM as standard, with the specification table below listing a 10 to 250 RPM range depending on configuration, and the current speed is shown on an RPM display meter for the operator to monitor during a run.
How many flasks can it hold at once?
Configurations are available for 4, 6, 8, and 12 flasks as the primary lineup, with the features table also listing 2, 10, and 16-holder options — so the holder count can be matched closely to your batch size instead of over- or under-buying capacity.
What flask sizes are compatible?
The shaker accommodates 50 ml to 1000 ml conical flasks as well as small round bottom flasks, with rubber-lined clamps holding each flask securely during extended shaking cycles.
Why does this shaker use a PID controller instead of a basic speed dial?
A PID controller continuously corrects the motor speed against the set point, which keeps RPM stable through a long run instead of drifting as the motor warms up or load varies slightly across holders. For test methods with a specified shake speed and duration, that consistency is what keeps results comparable between runs.
What is the shaker's build made of?
The exterior housing is mild steel with a GI powder-coated finish, the wrist rods holding the flask arms are stainless steel, and the flask clamps are MS powder-coated with rubber holders to protect glassware from chipping during continuous use.
Can the timer and speed controller be upgraded from manual to digital?
Yes — the shaker is available with a manual or digital speed controller, and optional accessories include a digital timer and speed display, spare flask holders, a top platform, and an extra shaking rod, so the configuration can be adjusted to the lab's preferred level of control.
